Wine Country
Encyclopedia
The Wine Country is a region of Northern California
Northern California
Northern California is the northern portion of the U.S. state of California. The San Francisco Bay Area , and Sacramento as well as its metropolitan area are the main population centers...

 in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 known worldwide as a premium wine
Wine
Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...

-growing region. Viticulture
Viticulture
Viticulture is the science, production and study of grapes which deals with the series of events that occur in the vineyard. When the grapes are used for winemaking, it is also known as viniculture...

 and wine-making have been practiced in the region since the mid-19th century. There are over 400 wineries
Winery
A winery is a building or property that produces wine, or a business involved in the production of wine, such as a wine company. Some wine companies own many wineries. Besides wine making equipment, larger wineries may also feature warehouses, bottling lines, laboratories, and large expanses of...

 in the area north of San Francisco
San Francisco, California
San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...

, mostly located in the area's valleys, including Napa Valley
Napa Valley AVA
Napa Valley AVA is an American Viticultural Area located in Napa County, California, United States. Napa Valley is considered one of the top wine regions in the United States...

 in Napa County
Napa County, California
Napa County is a county located north of the San Francisco Bay Area in the U.S. state of California. It is coterminous with the Napa, California, Metropolitan Statistical Area. As of 2010 the population is 136,484. The county seat is Napa....

, and the Sonoma Valley
Sonoma Valley AVA
The Sonoma Valley AVA is an American Viticultural Area in Sonoma County, California, USA which centers on the Sonoma Valley in the southern portion of the county...

, Alexander Valley, Dry Creek Valley
Dry Creek Valley AVA
The Dry Creek Valley AVA is an American Viticultural Area in Sonoma County, California, located northwest of the town of Healdsburg. The valley is formed by Dry Creek, a tributary of the Russian River, and is approximately long and wide...

, Bennett Valley
Bennett Valley AVA
The Bennett Valley AVA is an American Viticultural Area located in Sonoma County, California. The boundaries of this appellation lie completely within the North Coast AVA, almost completely within the Sonoma Valley AVA and overlaps into some areas of the Sonoma Coast AVA and Sonoma Mountain AVA...

, and Russian River Valley
Russian River Valley AVA
The Russian River Valley AVA is an American Viticultural Area in Sonoma County, California. Centered around the Russian River, the Russian River Valley AVA accounts for about one-sixth of the total planted vineyard acreage in Sonoma County. The appellation was granted AVA status in 1983 and...

 in Sonoma County
Sonoma County wine
Sonoma County wine is wine made in Sonoma County, California, USA. County names in the United States automatically qualify as legal appellations of origin for wine produced from grapes grown in that county and do not require registration with the United States Department of the Treasury, Alcohol...

. Wine grapes are also grown at higher elevations, such as Atlas Peak
Atlas Peak AVA
The Atlas Peak AVA is an American Viticultural Area located within Napa Valley AVA just northeast of the city of Napa. The appellation sits on a higher elevation than most of Napa's wine region which limits the effects of the cool fog coming in from Pacific Ocean. The westward orientation of most...

 and Mount Veeder
Mt. Veeder AVA
Mount Veeder AVA is an American Viticultural Area located within Napa Valley AVA among the Mayacamas Mountains. The boundaries of this appellation include with planted on thin volcanic soil. Many vineyards are found on the steep mountain face some as steep as 30°...

 AVAs
American Viticultural Area
An American Viticultural Area is a designated wine grape-growing region in the United States distinguishable by geographic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau , United States Department of the Treasury....

. The region is defined not only in terms of viticulture, but also its ecology
Ecology
Ecology is the scientific study of the relations that living organisms have with respect to each other and their natural environment. Variables of interest to ecologists include the composition, distribution, amount , number, and changing states of organisms within and among ecosystems...

, geology
Geology
Geology is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates...

, architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...

, cuisine
Cuisine
Cuisine is a characteristic style of cooking practices and traditions, often associated with a specific culture. Cuisines are often named after the geographic areas or regions that they originate from...

, and culture. The majority of the grape harvest, in terms of both area and value, derives from Sonoma County.

Communities associated with the Wine Country include Santa Rosa
Santa Rosa, California
Santa Rosa is the county seat of Sonoma County, California, United States. The 2010 census reported a population of 167,815. Santa Rosa is the largest city in California's Wine Country and fifth largest city in the San Francisco Bay Area, after San Jose, San Francisco, Oakland, and Fremont and 26th...

, Kenwood
Kenwood, California
Kenwood, California is an unincorporated town and census-designated place in Sonoma County, California, United States, located on Sonoma Highway between the cities Santa Rosa and Sonoma. It lies east of Sonoma Creek in the upper part of Sonoma Valley, a region sometimes called the Valley of the...

, Healdsburg
Healdsburg, California
Healdsburg is a city located in Sonoma County, California, in the United States. As of the 2010 United States Census, the city had a population of 11,254...

, Sonoma
Sonoma, California
Sonoma is a historically significant city in Sonoma Valley, Sonoma County, California, USA, surrounding its historic town plaza, a remnant of the town's Mexican colonial past. It was the capital of the short-lived California Republic...

, Napa
Napa, California
-History:The name Napa was probably derived from the name given to a southern Nappan village whose people shared the area with elk, deer, grizzlies and cougars for many centuries, according to Napa historian Kami Santiago. At the time of the first recorded exploration into Napa Valley in 1823, the...

, Yountville
Yountville, California
Yountville is an incorporated town in Napa County, California, United States. It is in the North Bay portion of the San Francisco Bay Area. The population was 2,933 at the 2010 census. Almost one third of the town's population lives on the grounds of the Veterans Home of California.The town's name...

, St. Helena
St. Helena, California
St. Helena is a city in Napa County, California, United States. It is part of the northern San Francisco Bay Area. The population was 5,814 at the 2010 census....

, Calistoga
Calistoga, California
Calistoga is a city in Napa County, California, United States. The population was 5,155 at the 2010 census.-Geography:According to the United States Census Bureau, the city has a total area of , 99.30% of it land and 0.70% of it water.-Climate:...

, Geyserville
Geyserville, California
Geyserville is an unincorporated community and census-designated place in Sonoma County, California, USA. Located in the Wine Country, it is noted by tourists for its restaurants, bed and breakfast inns, and wineries...

, Petaluma
Petaluma, California
Petaluma is a city in Sonoma County, California, in the United States. In the 2010 Census the population was 57,941.Located in Petaluma is the Rancho Petaluma Adobe, a National Historic Landmark. It was built beginning in 1836 by General Mariano Guadalupe Vallejo, then Commandant of the San...

, Sebastopol
Sebastopol, California
Sebastopol is a city in Sonoma County, California, United States, approximately north of San Francisco. The population was 7,379 at the 2010 census, but its businesses also serve surrounding rural portions of Sonoma County, totaling about 50,000 people...

, Guerneville
Guerneville, California
Guerneville is a town in the Russian River Valley of Sonoma County, California, USA. A popular vacation destination for couples and families as well as corporate retreats and family and friend reunions, Guerneville is well-known for its natural beauty, laid-back attitude, friendly population, good...

, historic Fort Ross and Ukiah
Ukiah, California
The average high temperature is 73.5 °F . Average low temperature is 46.1 °F . Temperatures reach 90 °F on an average of 65.6 days annually and 100 °F on an average of 14.4 days annually. Due to frequent low humidity, summer temperatures normally drop into the fifties at night. Freezing...

.

Appellations

Wine Country proper is generally regarded as the combined counties of Napa, Sonoma and Mendocino
Mendocino County wine
The Mendocino County wine is an appellation that designates wine made from grapes grown mostly in Mendocino County, California. The region is part of the larger North Coast AVA and one of California's largest and most climatically diverse wine growing regions...

. However, some reference works include part of Lake
Lake County, California
Lake County is a county located in the north central portion of the U.S. state of California, north of the San Francisco Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the county and the largest natural lake wholly within California...

 in the term Wine Country. These counties contain the following American Viticultural Area
American Viticultural Area
An American Viticultural Area is a designated wine grape-growing region in the United States distinguishable by geographic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau , United States Department of the Treasury....

s (AVAs):
  • in Sonoma County: Alexander Valley, Bennett Valley
    Bennett Valley AVA
    The Bennett Valley AVA is an American Viticultural Area located in Sonoma County, California. The boundaries of this appellation lie completely within the North Coast AVA, almost completely within the Sonoma Valley AVA and overlaps into some areas of the Sonoma Coast AVA and Sonoma Mountain AVA...

    , Chalk Hill
    Chalk Hill AVA
    The Chalk Hill AVA is an American Viticultural Area located in Sonoma County, California. The boundaries of the wine appellation cover the northeast corner of the Russian River Valley AVA. The majority of vineyards are located to the east of U.S. Route 101, near the town of Windsor...

    , Dry Creek Valley
    Dry Creek Valley AVA
    The Dry Creek Valley AVA is an American Viticultural Area in Sonoma County, California, located northwest of the town of Healdsburg. The valley is formed by Dry Creek, a tributary of the Russian River, and is approximately long and wide...

    , Green Valley of Russian River Valley
    Green Valley of Russian River Valley AVA
    The Green Valley of Russian River Valley AVA is an American Viticultural Area in Sonoma County, California, USA. Located at the southwestern corner of the Russian River Valley AVA, its close proximity to the Pacific Ocean makes it one of the coolest appellations within Sonoma County...

    , Knight's Valley
    Knights Valley AVA
    Knights Valley AVA is an American Viticultural Area in Sonoma County, California. One of Sonoma County's original five American Viticultural Areas , Knights Valley AVA was formally designated an American Viticultural Area on October 21, 1983. Knights Valley AVA includes approximately . Over 30...

    , Los Carneros
    Los Carneros AVA
    Los Carneros AVA is an American Viticultural Area which includes parts of both Sonoma and Napa counties in California, U.S.A.. It is located north of San Pablo Bay. The proximity to the cool fog and breezes from the bay makes the climate in Los Carneros cooler and more moderate than the wine...

    , Northern Sonoma
    Northern Sonoma AVA
    The Northern Sonoma AVA is an American Viticultural Area in Sonoma County, California, USA. The appellation covers most of the county with the notable exceptions of the Los Carneros AVA and Sonoma Valley AVA wine regions, which are located in the southern portion of the county...

    , Rockpile, Russian River Valley
    Russian River Valley AVA
    The Russian River Valley AVA is an American Viticultural Area in Sonoma County, California. Centered around the Russian River, the Russian River Valley AVA accounts for about one-sixth of the total planted vineyard acreage in Sonoma County. The appellation was granted AVA status in 1983 and...

    , Sonoma Coast
    Sonoma Coast AVA
    The Sonoma Coast AVA is an American Viticultural Area in Sonoma County, California, USA containing more than , mostly along the coastline of the Pacific Ocean. It extends from San Pablo Bay to the border with Mendocino County. The appellation is known for its cool climate and high rainfall...

    , Sonoma Mountain
    Sonoma Mountain AVA
    The Sonoma Mountain AVA is an American Viticultural Area in Sonoma County, California, USA. It is centered on the Sonoma Mountain landform in the Sonoma Mountains. The appellation includes the town of Glen Ellen, California and is bordered on the west by the Sonoma Valley AVA...

    , and Sonoma Valley
    Sonoma Valley AVA
    The Sonoma Valley AVA is an American Viticultural Area in Sonoma County, California, USA which centers on the Sonoma Valley in the southern portion of the county...

    .
  • in Napa County: Atlas Peak
    Atlas Peak AVA
    The Atlas Peak AVA is an American Viticultural Area located within Napa Valley AVA just northeast of the city of Napa. The appellation sits on a higher elevation than most of Napa's wine region which limits the effects of the cool fog coming in from Pacific Ocean. The westward orientation of most...

    , Los Carneros
    Los Carneros AVA
    Los Carneros AVA is an American Viticultural Area which includes parts of both Sonoma and Napa counties in California, U.S.A.. It is located north of San Pablo Bay. The proximity to the cool fog and breezes from the bay makes the climate in Los Carneros cooler and more moderate than the wine...

    , Mount Veeder
    Mt. Veeder AVA
    Mount Veeder AVA is an American Viticultural Area located within Napa Valley AVA among the Mayacamas Mountains. The boundaries of this appellation include with planted on thin volcanic soil. Many vineyards are found on the steep mountain face some as steep as 30°...

    , Napa Valley
    Napa Valley AVA
    Napa Valley AVA is an American Viticultural Area located in Napa County, California, United States. Napa Valley is considered one of the top wine regions in the United States...

    , Oakville
    Oakville AVA
    The Oakville AVA is an American Viticultural Area located within Napa Valley AVA and centered around the town of Oakville, California. The appellation extends over a flat expanse of well drained gravel soil between the Vaca and Mayacamas Mountains...

    , Rutherford
    Rutherford AVA
    The Rutherford AVA is an American Viticultural Area located within Napa Valley AVA and centered around the town of Rutherford, California. The area is known for its unique terroir particularly with its Cabernet Sauvignon. The well drained soil of this area is composition of gravel, loam and sand...

    , Saint Helena, Calistoga
    Calistoga AVA
    The Calistoga AVA is an American Viticultural Area located in the northern portion of California's Napa Valley AVA. The appellation is distinguished by its volcanic soil, high temperatures up to during the day, and cool nights during the growing season due to breezes from the Russian River,...

    , Stags Leap District
    Stags Leap District AVA
    The Stags Leap District AVA is an American Viticultural Area located within the Napa Valley AVA north of the city of Napa, California. The Stags Leap District was the first appellation to be designated an AVA based on the unique terroir characteristics of its soil...

    , and Yountville
    Yountville AVA
    The Yountville AVA is an American Viticultural Area located within Napa Valley AVA and centered around the town Yountville, California. The town's founder George Calvert Yount planted the first vineyard in this area around 1836. Yountville AVA is one of the coolest wine regions in Napa Valley,...

    .
  • in Mendocino County: Anderson Valley
    Anderson Valley AVA
    The Anderson Valley AVA is an American Viticultural Area centered around the Anderson Valley in Mendocino County, California. It is known primarily for its Pinot Noir and sparkling wine production. Lying to from the Pacific Ocean, the AVA is prone to wide diurnal temperature variation of between...

    , Covelo
    Covelo AVA
    The Covelo AVA is an American Viticultural Area located in northern Mendocino County, California. Although the region only has under vine, it was granted AVA status by the United States Department of the Treasury Alcohol and Tobacco Tax and Trade Bureau on February 16, 2006 based purely on the...

    , Mendocino
    Mendocino AVA
    The Mendocino AVA is an American Viticultural Area located in Mendocino County, California. Within this larger appellation are several smaller AVAs, and applications are pending with the United States Department of the Treasury Alcohol and Tobacco Tax and Trade Bureau to create new AVAs out of the...

    , and Potter Valley
    Potter Valley AVA
    The Potter Valley AVA is an American Viticultural Area located in northern Mendocino County, California centered around town of Potter Valley. The appellation is found east of the Redwood Valley AVA and has an elevation of around higher than surrounding areas...

    .
  • in Lake County: Clear Lake
    Clear Lake AVA
    The Clear Lake AVA is an American Viticultural Area located in Lake County, California.Half of the area contained within the boundaries of the AVA is Clear Lake, the largest body of freshwater in the state of California, and the namesake for the county...

    , Guenoc Valley
    Guenoc Valley AVA
    The Guenoc Valley AVA is an American Viticultural Area in Lake County, California, USA, about north of the town of Calistoga. Guenoc Valley AVA was the first American Viticultural Area designaion granted to an area with just a single winery....

    , High Valley
    High Valley AVA
    High Valley AVA is an American Viticultural Area located in the eastern part of Lake County, California. True to its name, the valley is situated on high elevations ranging from to , but it actually encompasses two distinct growing regions, the valley floor and the hillsides...

    , and Red Hills Lake County
    Red Hills Lake County AVA
    The Red Hills Lake County AVA is an American Viticultural Area located in Lake County, California. The wine region lies along the southwestern shores of Clear Lake, separating Excelsior Valley to the east from Big Valley to the west. The hills lie at the foot of Mount Konocti, an extinct volcano....

    .


The six-county North Coast AVA
North Coast AVA
The North Coast AVA is an American Viticultural Area in the state of California that encompasses grape-growing regions in six counties located north of San Francisco: Lake, Marin, Mendocino, Napa, Sonoma, and Solano...

 overlaps with the Wine Country as defined here. In addition, the names of the counties themselves are legal for use as appellation names.

History

The earliest prehistory
Prehistory
Prehistory is the span of time before recorded history. Prehistory can refer to the period of human existence before the availability of those written records with which recorded history begins. More broadly, it refers to all the time preceding human existence and the invention of writing...

 of the Wine Country involves habitation by several Native American
Native Americans in the United States
Native Americans in the United States are the indigenous peoples in North America within the boundaries of the present-day continental United States, parts of Alaska, and the island state of Hawaii. They are composed of numerous, distinct tribes, states, and ethnic groups, many of which survive as...

 tribes since approximately 8000 BC. The principal tribes living in this region were the Pomo, Coast Miwok
Coast Miwok
The Coast Miwok were the second largest group of Miwok Native American people. The Coast Miwok inhabited the general area of modern Marin County and southern Sonoma County in Northern California, from the Golden Gate north to Duncans Point and eastward to Sonoma Creek...

, Wappo
Wappo
The Wappo are a group of Native Americans who traditionally lived in Northern California in the areas of Napa Valley, the south shore of Clear Lake, Alexander Valley, and Russian River. When Mexicans arrived to colonize California, Wappo villages existed near the present-day towns of Yountville,...

 and Patwin
Patwin
The Patwin are a Wintun people native to the area of Northern California. The Patwin were a southern branch of the Wintun group and native inhabitants of California from 1,000 up to 4,000 years....

, whose early peoples practiced certain forms of agriculture
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...

, but probably not involving the cultivation of grapes. During the Mexican
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 Colonial period and after, Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an settlers brought in more intensive agriculture to the Wine Country, including growing grapes and wine production. Some of the historical events that led to the establishment of California as a state transpired in the Wine Country. In particular, the town of Sonoma
Sonoma, California
Sonoma is a historically significant city in Sonoma Valley, Sonoma County, California, USA, surrounding its historic town plaza, a remnant of the town's Mexican colonial past. It was the capital of the short-lived California Republic...

, is known as the birthplace of American California. Agoston Haraszthy
Agoston Haraszthy
Agoston Haraszthy was a Hungarian-American traveler, writer, town-builder, and pioneer winemaker in Wisconsin and California, often referred to as the "Father of California Viticulture," or the "Father of Modern Winemaking in California"...

 is credited with being one of the forefathers of the California wine
California wine
California wine has a long and continuing history, and in the late twentieth century became recognized as producing some of the world's finest wine. While wine is made in all fifty U.S. states, up to 90% of American wine is produced in the state...

 industry in Sonoma by his planting of grapes in the lower Arroyo Seco Creek
Arroyo Seco Creek
Arroyo Seco Creek or simply Arroyo Seco is a tributary stream to Schell Creek in southern Sonoma County, California, United States. In the Spanish language arroyo seco means "dry creek"....

 watershed
Drainage basin
A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 of Sonoma County.

As home to both Buena Vista winery, California's oldest commercial winery, and Gundlach Bundschu winery, California's oldest family-run winery, the Sonoma Valley
Sonoma Valley
Sonoma Valley is the birthplace of the California wine industry and often called The Valley of the Moon. Sonoma Valley is home to some of the earliest vineyards and wineries in the state, some of which survived the phylloxera epidemic of the 1870s and the impact of Prohibition...

 is known as the birthplace of the California wine industry.

Ecology

A diversity
Biodiversity
Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions...

 of aquatic
Aquatic ecosystem
An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems....

 and terrestrial
Terrestrial animal
Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 organism
Organism
In biology, an organism is any contiguous living system . In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homoeostasis as a stable whole.An organism may either be unicellular or, as in the case of humans, comprise...

s populate the Wine Country and its riparian zone
Riparian zone
A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the fifteen terrestrial biomes of the earth. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by...

s. Winter-run Chinook salmon
Chinook salmon
The Chinook salmon, Oncorhynchus tshawytscha, is the largest species in the pacific salmon family. Other commonly used names for the species include King salmon, Quinnat salmon, Spring salmon and Tyee salmon...

 (Oncorhynchus tsawytscha), Delta smelt
Delta smelt
Delta smelt, Hypomesus transpacificus, is an endangered slender-bodied smelt, about long, of the Osmeridae family. Endemic to the upper Sacramento-San Joaquin estuary of California, it mainly inhabits the freshwater-saltwater mixing zone of the estuary, except during its spawning season, which...

 (Hypomesus transpacificus) and steelhead (Onchorhynchus mykiss) are the most prominent fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

es. Anadromous fish movements in Sonoma Creek and the Napa River
Napa River
The Napa River, approximately 55 miles long, is a river in the U.S. state of California. It drains a famous wine-growing region, called the Napa Valley, in the mountains northeast of San Francisco. Milliken Creek is a tributary of the Napa River....

 as well as the Laguna de Santa Rosa
Laguna de Santa Rosa
The Laguna de Santa Rosa is a long wetland complex that drains a 254-square mile watershed encompassing most of the Santa Rosa Plain in Sonoma County, California, USA.-Description:...

 have been studied extensively not only in the mainstems, but in many of the tributaries. These investigations have demonstrated a historical decline in spawning and habitat value for these species, primarily due to sedimentation and secondarily to removal of riparian vegetation since the 19th century.

A variety of salamander
Salamander
Salamander is a common name of approximately 500 species of amphibians. They are typically characterized by a superficially lizard-like appearance, with their slender bodies, short noses, and long tails. All known fossils and extinct species fall under the order Caudata, while sometimes the extant...

s, snake
Snake
Snakes are elongate, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales...

s and frogs are also present in the Wine Country. The federally listed as threatened California red-legged frog
California Red-legged Frog
The California red-legged frog, Rana draytonii, is a moderate to large species of frog. It is known under the scientific name Rana draytonii, after being long included with the northern red-legged frog The California red-legged frog, Rana draytonii, is a moderate to large (4.4–14 cm) species...

 is present in the northern reach draining the south slopes of Annadel State Park
Annadel State Park
Annadel State Park is a state park of California, USA, situated at the northern edge of Sonoma Valley and offering many recreational activities within its property...

. Several endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

 (mostly associated with the Napa Sonoma Marsh
Napa Sonoma Marsh
The Napa Sonoma Marsh is a wetland at the northern edge of San Pablo Bay, which is a northern arm of the San Francisco Bay in California, USA. This marsh has an area of 48,000 acres , of which 13,000 acres are abandoned salt evaporation ponds...

) present include California clapper rail
California Clapper Rail
The California Clapper Rail is an endangered subspecies of the Clapper Rail . It is found principally in California's San Francisco Bay, and also in Monterey Bay and Morro Bay...

 (Rallus longirostris), California Black Rail
Black Rail
The Black Rail is a mouse-sized member of the Rallidae family of birds. It is found in scattered parts of North America and the Pacific region of South America, usually in coastal salt marshes but also in some freshwater marshes. It is extinct or threatened in many locations due to habitat loss...

 (Laterallus jamaicensis), California brown pelican
Brown Pelican
The Brown Pelican is the smallest of the eight species of pelican, although it is a large bird in nearly every other regard. It is in length, weighs from and has a wingspan from .-Range and habits:...

 (Pelicanus occudentalis), California freshwater shrimp (Syncaris pacifica
Syncaris pacifica
Syncaris pacifica is an endangered species of freshwater shrimp in the family Atyidae that occurs only in a limited range within the northern San Francisco Bay Area, California, USA. Specifically, this species occurs only in 17 stream segments within Sonoma, Napa and Marin Counties...

), Salt marsh harvest mouse
Salt Marsh Harvest Mouse
The Salt Marsh Harvest Mouse , also known as the Red-bellied Harvest Mouse and some times called by Saltmarsh Harvest Mouse, is an endangered rodent endemic to the San Francisco Bay Area salt marshes in California. There are two distinct subspecies, both endangered and listed together on federal...

 (Reithrodontomys raviventris ), Suisun Shrew
Suisun Shrew
Sorex ornatus sinuosus, the Suisun Shrew or Suisun ornate shrew, is a subspecies of the Ornate Shrew that occurs in the tidal marshes of the northern shores of San Pablo and Suisun bays Sorex ornatus sinuosus, the Suisun Shrew or Suisun ornate shrew, is a subspecies of the Ornate Shrew that occurs...

 (Sorex ornatus sinuosus), Sacramento splittail (Pogonichtys macrolepidotus). The above are endangered species
Endangered species
An endangered species is a population of organisms which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters...

 with the exception of the splittail, steelhead and black rail, which species are federally designated as Threatened.

Upland ecosystems drained include mixed California oak woodland
California oak woodland
California oak woodland is a plant community found throughout the California chaparral and woodlands ecoregion of California in the United States and northwestern Baja California in Mexico...

, chaparral
Chaparral
Chaparral is a shrubland or heathland plant community found primarily in the U.S. state of California and in the northern portion of the Baja California peninsula, Mexico...

 and savannah
Savannah
Savannah or savanna is a type of grassland.It can also mean:-People:* Savannah King, a Canadian freestyle swimmer* Savannah Outen, a singer who gained popularity on You Tube...

 woodland
Woodland
Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...

. In these upland reaches one finds plentiful Black-tailed Deer
Black-tailed Deer
Two forms of black-tailed deer or blacktail deer occupying coastal temperate rainforest on North America's Pacific coast are subspecies of the mule deer. They have sometimes been treated as a species, but virtually all recent authorities maintain they are subspecies...

, coyote
Coyote
The coyote , also known as the American jackal or the prairie wolf, is a species of canine found throughout North and Central America, ranging from Panama in the south, north through Mexico, the United States and Canada...

, skunk, raccoon, opossum, wild turkey
Wild Turkey
The Wild Turkey is native to North America and is the heaviest member of the Galliformes. It is the same species as the domestic turkey, which derives from the South Mexican subspecies of wild turkey .Adult wild turkeys have long reddish-yellow to grayish-green...

, turkey vulture
Turkey Vulture
The Turkey Vulture is a bird found throughout most of the Americas. It is also known in some North American regions as the Turkey Buzzard , and in some areas of the Caribbean as the John Crow or Carrion Crow...

, red-tailed hawk
Red-tailed Hawk
The Red-tailed Hawk is a bird of prey, one of three species colloquially known in the United States as the "chickenhawk," though it rarely preys on standard sized chickens. It breeds throughout most of North America, from western Alaska and northern Canada to as far south as Panama and the West...

 and occasionally bobcat and mountain lion. Prominent higher elevation trees include: Coast live oak
Coast Live Oak
Quercus agrifolia, the Coast Live Oak, is an evergreen oak , native to the California Floristic Province. It grows west of the Sierra Nevada from Mendocino County, California, south to northern Baja California in Mexico. It is classified in the red oak section Quercus agrifolia, the Coast Live Oak,...

, Garry Oak
Garry Oak
Quercus garryana, the Garry Oak, Oregon White Oak or Oregon Oak, has a range from southern California to extreme southwestern British Columbia, particularly southeastern Vancouver Island and the adjacent Gulf Islands. It grows from sea level to 210 m altitude in the northern part of its range, and...

, Pacific madrone
Pacific Madrone
Arbutus menziesii, commonly known as the Pacific Madrone, is a species of Arbutus found on the west coast of North America, from British Columbia to California...

, California Buckeye, Douglas fir, whereas Valley oak
Valley Oak
Quercus lobata, commonly called the Valley oak, grows into the largest of North American oaks. It is endemic to California, growing in the interior valleys and foothills. Mature specimens may attain an age of up to 600 years. This deciduous oak requires year-round access to groundwater.Its thick,...

 is prevalent on the Wine Country valley floors.

Tourism

The Wine Country has undergone a boom in tourism. In 1975 there were only 25 Napa Valley wineries; today there are well over 400 wineries in Napa and Sonoma Counties. Tourists come to the region not only for wine-tasting, but also for hiking
Hiking
Hiking is an outdoor activity which consists of walking in natural environments, often in mountainous or other scenic terrain. People often hike on hiking trails. It is such a popular activity that there are numerous hiking organizations worldwide. The health benefits of different types of hiking...

, bicycling
Bicycle
A bicycle, also known as a bike, pushbike or cycle, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A person who rides a bicycle is called a cyclist, or bicyclist....

, hot air balloon
Hot air balloon
The hot air balloon is the oldest successful human-carrying flight technology. It is in a class of aircraft known as balloon aircraft. On November 21, 1783, in Paris, France, the first untethered manned flight was made by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes in a hot air...

ing, and historic sites, as well as the extensive culinary choices. Numerous notable chefs and restauranteurs are present in the Wine Country, including Thomas Keller
Thomas Keller
Thomas Keller is an American chef, restaurateur, and cookbook writer. He and his landmark Napa Valley restaurant, The French Laundry in Yountville, California, have won multiple awards from the James Beard Foundation, notably the Best California Chef in 1996, and the Best Chef in America in 1997...

, John Ash
John Ash
John Ash may refer to:* John Ash , British physician.* John Ash , lexicographer and minister* John Ash , Member of the Legislative Assembly for Comox riding in British Columbia, Canada...

, and Sondra Bernstein. Besides the obvious winery attractions, the Wine Country is known for its hot springs
Hot Springs
Hot Springs may refer to:* Hot Springs, Arkansas** Hot Springs National Park, Arkansas*Hot Springs, California**Hot Springs, Lassen County, California**Hot Springs, Modoc County, California**Hot Springs, Placer County, California...

 baths, petrified forest
Petrified Forest
A petrified forest is a forest in which tree trunks have fossilized as petrified wood.Petrified Forest may refer to:*Lake Macquarie Petrified Forest, Lake Macquarie, New South Wales, Australia*Mississippi Petrified Forest, Mississippi, United States...

s and other natural areas.

The Wine Country tourism boom has its downside, exemplified by traffic congestion on State Route 29
California State Route 29
State Route 29 is a state highway in the U.S. state of California that travels in a north–south direction from State Route 20 in Upper Lake to Interstate 80 in Vallejo.-Route description:...

, particularly on summer weekends, when the number of tourists often exceeds the carrying capacity
Carrying capacity
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water and other necessities available in the environment...

 of the road. The Napa Valley is also experiencing pressures for increased urbanization and roadway upgrading.

See also

  • Central Coast AVA
    Central Coast AVA
    The Central Coast AVA is a large American Viticultural Area that spans from Santa Barbara County in the south to the San Francisco Bay Area in the north. The boundaries of the Central Coast include portions of six counties. With around planted to wine grapes, Chardonnay accounts for more than...

  • Mendocino County wine
    Mendocino County wine
    The Mendocino County wine is an appellation that designates wine made from grapes grown mostly in Mendocino County, California. The region is part of the larger North Coast AVA and one of California's largest and most climatically diverse wine growing regions...

  • Napa County wine
    Napa County wine
    Napa County wine is wine made in Napa County, California, USA. County names in the United States automatically qualify as legal appellations of origin for wine produced from grapes grown in that county and do not require registration with the United States Department of the Treasury Alcohol and...

  • Sonoma County wine
    Sonoma County wine
    Sonoma County wine is wine made in Sonoma County, California, USA. County names in the United States automatically qualify as legal appellations of origin for wine produced from grapes grown in that county and do not require registration with the United States Department of the Treasury, Alcohol...

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